Abstract
Room and high temperature deformation behaviors of Cu-Zr-Ti-Pd bulk metallic glasses produced by copper mold casting were investigated. The addition of Pd was shown to enhance the glass forming ability and thermal stability of Cu-Zr-Ti base bulk metallic glass. The compressive strength of <TEX>$Cu_{55}Zr_{30}Ti_{10}Pd_5$</TEX> bulk metallic glass was 2230 MPa with 1.8 plastic strain. The stress overshoot and yield drop phenomenon were observed below <TEX>$487^{\circ}C$</TEX> and a drastic decrease in the flow stress was observed at <TEX>$487^{\circ}C$</TEX>. The stress overshoot is thought to be associated with stress-induced structural relaxation.
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